Originally Posted by hazarada
Im looking for a feasible way to use sub 0 temps for 24/7 where the humidity seems to be the biggest issue.. So i figured maybe if i insulate the motherboard environment (like airtight in ambient pressure) and run a ventilation loop from that environment through a dehumidifier it might solve the problem. Problem is - ive never owned nor even seen (i think) a dehumidifer so i have no clue how effective they really are, could they possibly do the trick here?
I am not commenting on the cost and noise factors of this plan but just on the technical aspect.
I think the best top grade consumer home use dehumidifier can drive the RH of an enclosed environment to 30%.
So, suppose you put the motherboard in an airtight environment to use such a dehumidifier and further suppose you do not cool down the air inside the sealed environment, the air temp will be more or less like the ambient air outside the environment (say, 20C).
At 20C and 30% RH, dew point is 2C. I do not know how far below 0C that you are planning to go. But I think if you deal with LN2, condensation is still a threat in such environment.